| 杭州湾南岸滩涂贝类养殖环境中微生物数量分布及其类群 |
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| 引用本文： | 王美珍.杭州湾南岸滩涂贝类养殖环境中微生物数量分布及其类群[J].水产学报,2005,29(5):682-687. |
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| 作者姓名： | 王美珍 |
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| 作者单位： | 慈溪市水产技术推广中心,浙江,慈溪,315300;宁波大学生命科学与生物工程学院,浙江,宁波,315211;舟山市疾病预防控制中心,浙江,舟山,316000;淮海工学院,江苏,连云港,222005 |
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| 基金项目： | 宁波市科技攻关项目（01N40100-74）;慈溪市科技攻关项目（CN2003015）;宁波海洋与渔业科技项目（200210） |
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| 摘 要： | 研究了杭州湾南岸慈溪滩涂贝类养殖区的微生物在水平、垂直及季节变化的分布规律。结果表明:3个采样区的异养细菌的数量变动在1.62×103~6.62×105cfu.g-1之间,平均值为4.28×104cfu.g-1,细菌数量在春季和夏季的数量偏低,10月份异养细菌的数量开始上升,并于11月份达到最高,表层高于底层;其中以革兰氏阳性菌比例最高,为主要的优势种,具有陆源性特点。各站位反硝化细菌、氨化细菌和硫酸还原菌的检出率均为100%,都维持在一个较高的水平,整体上数量具有表层高于底层的特点,3种微生物在数量上的季节演替与异养细菌具有类似的结果,均为10-11月达到最大。
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| 关 键 词： | 滩涂 异养细菌 反硝化细菌 氨化细菌 硫化细菌 数量分布 |
| 文章编号： | 1000-0615（2005）05-0682-06 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004年12月20 |
Microorganism population quantitative variation and its distribution in shellfish culture shoal of south bank in Hangzhou Bay |
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| WANG Mei-zhen.Microorganism population quantitative variation and its distribution in shellfish culture shoal of south bank in Hangzhou Bay[J].Journal of Fisheries of China,2005,29(5):682-687. |
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| Authors: | WANG Mei-zhen |
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| Institution: | WANG Mei-zhen~1,WANG Guo-liang~2,XUE Chao-bo~3,DONG Zhi-guo~4,PAN Xue-yang~1 |
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| Abstract: | n the paper, the quantitative variation and distribution of microorganism population in shellfish culture shoal of south bank in Hangzhou Bay was studied, The samples were collected from 3 different sites in Hangzhou Bay. The results indicate that heterotrophic bacteria variation is from 1.62?10^3-6.62?10^5cfu?g^-1, mean 4.28?10^4cfu?g^-1, and there is a low quantity in spring and summer, rising in October and reaching the peak in November in the sample sites. About bacteria populations, dominant species is gram-positive bacteria, which is characterized with an obvious origin from land. Denitrifying bacteria, ammonifying bacteria and sulfate-reduction bacteria all were found in these sites and maintain a high level although there was a difference in quantity between bottom and surface layers in the shoal, surface layer being higher than bottom. |
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| Keywords: | shoal heterotrophic bacteria denitrifying bacteria ammonifying bacteria sulfate-reduction bacteria quantitative distribution |
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